<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Vue.set的使用</title>
    <script type="text/javascript" src="../js/vue.js"></script>
</head>
<body>
    <div id="root">
        <h1>学校信息</h1>
        <h2>学校名称:{{school.name}}</h2>
        <h2>学校地址:{{school.address}}</h2>
        <hr>
        <h1>学生信息</h1>
        <button @click="addSex">添加一个性别属性，默认值男</button>
        <h2>学生名字:{{student.name}}</h2>
        <h2 v-if="student.sex">性别:{{student.sex}}</h2>
        <h2>学生年龄:真实{{student.age.rAge}},对外{{student.age.sAge}}</h2>
        <h2>朋友们</h2>
        <ul>
            <li v-for="(f,index) in student.friends" :key="index">
                {{f.name}}--{{f.age}}
            </li>
        </ul>
        <h2>爱好</h2>
        <ul>
            <li v-for="(h,index) in student.hobby" :key="index">
                {{h}}
            </li>
        </ul>
    </div>
</body>
<script type="text/javascript">
    Vue.config.productionTip=false;
    //用computer实现
    const vm=new Vue({
        el:'#root',
        data:{
            school:{
                name:'小慧',
                address:'郴州'
            },
            student:{
                name:'tom',
                age:{
                    rAge:18,
                    sAge:24,
                },
                hobby:['唱歌','跳舞','打篮球'],
                friends:[
                    {name:'mini',age:20},
                    {name:'jennie',age:20}
                ]
            }
        },methods: {
            addSex(){
                //Vue.set(this.student,'sex','男')
                this.$set(this.student,'sex','男')
            }
        }
    })
</script>
</html>